
Micehaveahearingrangethatextendsintotheultrasonicrange,fromabout1kHzto100kHz,whichismuchhigherthanthehumanrangeof20Hzto20kHz.Micearemostsensitivetofrequenciesbetween12kHzand24kHz.
Ultrasonicrodentrepellersarenoteffectivepestcontrolformicebecausemiceandotherrodentscanquicklybecomeaccustomedtorepeatedsounds.Ultrasonicsoundwavesmayalsobeblockedbytheobjectsmicehidebehind,und...[
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人性,
没钱的时候怕人知道,钱挺多时候也是怕人知道
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TheTexasKillingFieldsisthenamegiventoa25-acrestretchoflandbetweenHoustonandGalvestonwherethebodiesofaround35womenwerefoundfromthe1970stothe1990s.TheLeagueCityPoliceDepartmentandtheFBIarestillactivelyworkingonsolvingthemurders.
No,notallofthemurdersattheTexasKillingFieldshavebeensolved:
WilliamLewisReece
Convictedofthemurder...[
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